Orion 20mm Illuminated Centering Telescope Eyepiece
- Relatively low-power 20mm 1.25" telescope eyepiece with an illuminated crosshair reticle with myriad uses is a welcome addition to any astronomer's accessory case
- The perfect telescope eyepiece for alignment of computerized GoTo systems or IntelliScope systems with a comfortable 16mm eye relief
- An invaluable aid to centering guide stars and astrophotography target objects - you'll wish you had one long ago!
- Illuminated crosshair precisely centered in eyepiece field of view for accurate results
- Wide 70-degree apparent field of view makes acquiring and centering target objects a breeze.
In comparison to most standard low-focal length illuminated reticle telescope eyepieces, the 20mm Illuminated Centering Telescope Eyepiece offers a relatively long 20mm focal length and a wide 70-degree apparent field-of-view, making it easier to locate desirable targets for alignment or guiding. This virtually eliminates the need for swapping out high-power illuminated reticles with lower power eyepieces in order to center objects.
The Illuminated Centering Eyepiece is fully multi-coated (all air-to-glass surfaces) with anti-reflection coatings for bright, crisp views. It features a great 16mm eye relief and the barrel is threaded for Orion 1.25" filters. The illuminator switch doubles as a "dimmer" allowing you to adjust cross-hair brightness to the desired level.
The illuminator is powered by two AG9 button cell alkaline batteries (included). The Illuminated Centering Eyepiece weighs 8 ounces.
Limited Warranty against defects in materials or workmanship for one year from date of purchase. This warranty is for the benefit of the original retail purchaser only.
- Eyepiece focal length
- Barrel size
- Apparent field of view
- Eye relief
- Number of elements
- Filter threads
- Field stop diameter
- Barrel security recess
- Blackened lens edges
- Rubber eyeguards
- Body material
- Weight (oz.)